Dibutyl Squarate(https://www.bloomtechz.com/synthetic-chemical/api-researching-only/dibutyl-squarate-cas-2892-62-8.html) is a colorless or pale yellow liquid with a characteristic odour. Its molecular formula is C14H18O4, and its relative molecular mass is 250.29 g/mol. The compound usually comes in liquid form and exhibits viscous properties at room temperature. At room temperature, it is in a liquid state and has a high boiling point, making it stable at high temperatures. Has a certain solubility. It can be dissolved in various organic solvents, such as ethanol, acetone and dichloromethane, etc. However, it has low solubility and may not be easily miscible with some polar compounds. Has good thermal stability. It can remain relatively stable under high temperature conditions, and is not easy to decompose or lose its properties. This gives it certain advantages in high temperature applications. It also has some special physical properties in other aspects. For example, it is a non-electrolyte and does not produce ions in solution. In addition, its molecular structure gives it some stability in certain chemical reactions. Dibutyl Squarate is an organic compound with a variety of applications.
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1. Cosmetics industry:
Dibutyl Squarate is often used as a thickener, emulsifier and humectant in cosmetics. It improves the viscosity and texture of products and helps stabilize emulsions and emulsion systems. In addition, Dibutyl Squarate also has good moisturizing properties to prevent moisture loss from the skin.
2. Fragrance and fragrance industry:
Dibutyl Squarate is used as a solvent and fixative in perfumes and essences. It helps stabilize the persistence of fragrance molecules in the product and provides a long-lasting aroma to the product.
3. Printing and ink industry:
Dibutyl Squarate can be used as a solubilizer and stabilizer in printing inks. It can improve the fluidity and gloss of the ink, and help the ink adhere to the printing material evenly.
4. Plastic and rubber industry:
As a soluble plastic additive, Dibutyl Squarate can be used to improve the processability and flexibility of plastics and rubber. It can make plastic easier to process and shape, and increase the elasticity and ductility of rubber products.
5. Pharmaceutical field:
Dibutyl Squarate is used as a carrier and dissolving agent for drugs. Its applications in pharmaceutical formulations include oral capsules, injections, and emulsions. Its high solubility and lipophilicity make it an ideal pharmaceutical solvent.
6. Optical materials:
Because Dibutyl Squarate has excellent optical properties and thermal stability, it is widely used in optical materials. It can be used to prepare transparent films, lenses and optical coatings, as well as packaging materials for optical devices.
7. Electronic materials:
Dibutyl Squarate is an electronics grade solvent that can be used in the preparation and processing of electronic materials. It is used as a solvent, cleaning agent and coating material in the manufacturing process of electronic components.
8. Other application areas:
Dibutyl Squarate also works in metal rust inhibitors, plastic packaging films, dyes and pigments. In addition, it is used as a laboratory reagent in the research field.
Dibutyl Squarate (dibutyl squarate) can be obtained by the following laboratory synthesis method. The following is a common synthetic step and its chemical reaction formula:
Synthetic steps:
1. Preparation before reaction:
- Have appropriate safety equipment such as gloves, goggles, and a lab coat ready in the lab.
- Make sure the operating area is well ventilated.
2. Reactor setup:
- Prepare a dry round bottom flask with a condenser attached.
- Dibutyl Malonate was added to the flask as a starting material.
3. Reaction steps:
a. Add bromoacetic acid catalyst:
- Dissolve an appropriate amount of bromoacetic acid in a small amount of absolute ethanol and slowly add it dropwise to the dibutyl dicarbonate in the flask.
- Add excess bromoacetic acid to ensure the reaction proceeds.
b. Heat the reaction mixture:
- Place the flask on a heater and heat it to the reaction temperature, generally 100-110 degrees Celsius.
- While heating, the reaction mixture is stirred.
c. Response time:
- Let the mixture react at the reaction temperature for a period of time, usually several hours.
d. Cooling and crystallization:
- Turn off the heater and allow the reaction mixture to cool down to room temperature.
- The formation of crystals can be observed. Crystallization of crystals can be further induced by refrigeration or addition of appropriate solvents.
e. Separation and drying:
- Separate the solids using filter paper or a suction filter.
- The separated solid crystals are washed and filtered, then placed in a ventilation tank to dry.
4. Identification and purification:
- Products can be identified using techniques such as infrared spectroscopy (IR), nuclear magnetic resonance (NMR) and mass spectrometry.
- If a higher purity product is required, further crystallization, washing and drying can be performed.
Chemical reaction formula:
Dibutyl dicarbonate + C2H3BrO2 → C12H18O4 + CO2
(CH3(CH2)3CO2)2CHCH2CO2(CH2)3CH3 + CH2BrCOOH → (CH3(CH2)3CO2)2C=C(CO2(CH2)3CH3)2 + CO2